Calvin E. Butler b; 1862 in Coshocton County, OH

I am looking for Calvin E. Butler parents.His death certificate list them as George Butler and Malinda Dean.He was not raised by these two.Would like to find out who raised him and any information on his real parents.He was born 9-3-1862 in Coshocton County, Ohio.His mother was a servent to the older couple that raised him.His father George Butler was shot in the leg during an incident called Fort Fizzel. Any information would be helpful